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A Study of Optimal Mesh Interface Region Generation to Improve Spatial and Temporal Accuracy  

Cho Kum Won (한국과학기술정보연구원 슈퍼컴퓨팅센터)
Publication Information
Journal of computational fluids engineering / v.8, no.3, 2003 , pp. 41-49 More about this Journal
Abstract
The spatial accuracy becomes first-order when second-order conservation schemes including the non-conservative interpolation in general Chimera method are used. To ensure the solution accuracy, the discontinuities must be located away from the overlapped regions, and the length of overlapped region also must be proportional to the grid spacing. In this paper, a proposed method, cut-paste algorithm, is used to satisfy above constraints. The cut-paste algorithm can generate the optimal mesh inteface region automatically, To validate the spatial and temporal accuracy due to the non-conservative interpolation, inviscid and viscous problems are tested.
Keywords
Overlapped grid; Mesh Interface region; Unsteady flow;
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